RESTRUCTURING AND ASSET RELATED CHARGES - NET (2023 Restructuring Program) (Details) - USD ($)	3 Months Ended				9 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Restructuring Cost and Reserve [Line Items]
Restructuring and asset related charges - net	$ 0			$ 0	$ 549,000,000	$ 186,000,000
Restructuring Charges	82,000,000			11,000,000	688,000,000	31,000,000
2023 Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	163,000,000	$ 273,000,000	$ 333,000,000		$ 163,000,000
Payments for Restructuring	$ 110,000,000	60,000,000	11,000,000
Restructuring Reserve, Settled without Cash		8,000,000	197,000,000
Restructuring and asset related charges - net		8,000,000	541,000,000
Restructuring Reserve, Settled without Cash		(8,000,000)	(197,000,000)
Restructuring and related workforce reduction	2,000				2,000
Restructuring Charges					$ 549,000,000
2023 Restructuring Program | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	$ 163,000,000	273,000,000	333,000,000		163,000,000
Payments for Restructuring	110,000,000	60,000,000	11,000,000
Restructuring Reserve, Settled without Cash		0	0
Restructuring and asset related charges - net		0	344,000,000
Restructuring Reserve, Settled without Cash		0	0
Restructuring Charges					344,000,000
2023 Restructuring Program | Asset write-downs and write-offs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	0	0	0		0
Payments for Restructuring	0	0	0
Restructuring Reserve, Settled without Cash		8,000,000	197,000,000
Restructuring and asset related charges - net		8,000,000	197,000,000
Restructuring Reserve, Settled without Cash		(8,000,000)	(197,000,000)
Restructuring Charges					205,000,000
2023 Restructuring Program | Restructuring Implementation Costs
Restructuring Cost and Reserve [Line Items]
Payments for Restructuring	280,000,000
Packaging & Specialty Plastics [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	0			0	1,000,000	0
Packaging & Specialty Plastics [Member] | 2023 Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring and asset related charges - net			1,000,000
Packaging & Specialty Plastics [Member] | 2023 Restructuring Program | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and asset related charges - net			0
Packaging & Specialty Plastics [Member] | 2023 Restructuring Program | Asset write-downs and write-offs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and asset related charges - net			1,000,000
Industrial Intermediates & Infrastructure [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	0			0	48,000,000	0
Industrial Intermediates & Infrastructure [Member] | 2023 Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring and asset related charges - net		8,000,000	40,000,000
Industrial Intermediates & Infrastructure [Member] | 2023 Restructuring Program | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and asset related charges - net		0	0
Industrial Intermediates & Infrastructure [Member] | 2023 Restructuring Program | Asset write-downs and write-offs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and asset related charges - net		$ 8,000,000	40,000,000
Performance Materials & Coatings [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	0			0	67,000,000	0
Performance Materials & Coatings [Member] | 2023 Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring and asset related charges - net			49,000,000
Performance Materials & Coatings [Member] | 2023 Restructuring Program | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and asset related charges - net			0
Performance Materials & Coatings [Member] | 2023 Restructuring Program | Asset write-downs and write-offs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and asset related charges - net			49,000,000
Corporate Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	82,000,000			$ 11,000,000	572,000,000	$ 31,000,000
Corporate Segment [Member] | 2023 Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring and asset related charges - net			451,000,000
Corporate Segment [Member] | 2023 Restructuring Program | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and asset related charges - net			344,000,000
Corporate Segment [Member] | 2023 Restructuring Program | Asset write-downs and write-offs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and asset related charges - net			$ 107,000,000
Accrued and Other Current Liabilities [Member] | 2023 Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	105,000,000				105,000,000
Other Noncurrent Obligations [Member] | 2023 Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	$ 58,000,000				$ 58,000,000